9/11/11 In Colorado

US Army Green Beret Captain William Lyles III, a wounded veteran of the Iraq and Afghanistan Wars, throws out the first pitch commemorating the tenth anniversary of the terrorist attacks of 9/11 as the Cincinnati Reds face the Colorado Rockies at Coors Field on Sept. 11, 2011 in Denver. (Photo by Doug Pensinger/Getty Images)

9/11: 10 Years Later In Colorado

An image from the memorial stair climb at Red Rocks (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the rally At Civic Center Park in Denver. (credit: CBS)

9/11: 10 Years Later In Colorado

The 120th Fighter Squadron Red Eyes from Buckley Air Force Base in Colorado does a fly over during pregame activities commemorating the tenth anniversary of the terrorist attacks of 9/11 as the Cincinnati Reds face the Colorado Rockies at Coors Field on Sept. 11, 2011 in Denver. (Photo by Doug Pensinger/Getty Images)

Rally At Civic Center Park (5)

An image from the rally At Civic Center Park in Denver. (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the memorial stair climb at Red Rocks (credit: CBS)

9/11: 10 Years Later In Colorado

The Cincinnati Reds and the Colorado Rockies join first responders as they unfurl an American Flag during pregame on-field activities commemorating the tenth anniversary of the terrorist attacks of 9/11 at Coors Field on Sept. 11, 2011 in Denver. (Photo by Doug Pensinger/Getty Images)

9/11: 10 Years Later In Colorado

A military color guard presents the flags as the national anthem is honored and moment of silence is given in rememberance of 9/11 as the Colorado Buffaloes host the California Golden Bears at Folsom Field on Sept. 10, 2011 in Boulder. (Photo by Doug Pensinger/Getty Images)

9/11: 10 Years Later In Colorado

Denver Broncos fans wave American flags at Sports Authority Field at Mile High on Sept. 12, 2011 in Denver. (Photo by Doug Pensinger/Getty Images)

9/11: 10 Years Later In Colorado

An image from the rally in Broomfield (credit: CBS)

9/11: 10 Years Later In Colorado

Denver Broncos fans wave American flags before the Broncos take on the Oakland Raiders at Sports Authority Field at Mile High on Sept. 12, 2011 in Denver. (Photo by Doug Pensinger/Getty Images)

9/11: 10 Years Later In Colorado

Brandon Lloyd of the Denver Broncos greets police officers prior to the game at Sports Authority Field at Mile High on Sept. 12, 2011 in Denver. (Photo by Garrett W. Ellwood/Getty Images)

9/11: 10 Years Later In Colorado

An image from the rally At Civic Center Park in Denver. (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the rally At Civic Center Park in Denver. (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the performance by the Beach Boys at the rally At Civic Center Park in Denver. (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the memorial stair climb at Red Rocks (credit: CBS)

9/11: 10 Years Later In Colorado

Marines are seen on the field during the singing of the United States National Anthem before the Denver Broncos take on the Oakland Raiders at Sports Authority Field at Mile High on Sept. 12, 2011 in Denver. (Photo by Doug Pensinger/Getty Images)

9/11: 10 Years Later In Colorado

Denver Broncos fans hold American flags before the Broncos take on the Oakland Raiders at Sports Authority Field at Mile High on Sept. 12, 2011 in Denver. (Photo by Doug Pensinger/Getty Images)

9/11: 10 Years Later In Colorado

An image from the rally At Civic Center Park in Denver. (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the rally At Civic Center Park in Denver. (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the rally in Broomfield (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the memorial stair climb at Red Rocks (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the rally in Broomfield (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the memorial stair climb at Red Rocks (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the rally in Broomfield (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the rally At Civic Center Park in Denver. (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the rally at Dicks Sporting Goods Park in Commerce City (credit: CBS)

9/11: 10 Years Later In Colorado

Active duty and veteran members of the US Military march around the field during pregame activities commemorating the tenth anniversary of the terrorist attacks of 9/11 as the Cincinnati Reds face the Colorado Rockies at Coors Field on Sept. 11, 2011 in Denver. (Photo by Doug Pensinger/Getty Images)

9/11: 10 Years Later In Colorado

An image from the rally At Civic Center Park in Denver. (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the rally in Broomfield (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the rally At Civic Center Park in Denver. (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the rally At Civic Center Park in Denver. (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the memorial stair climb at Red Rocks (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the rally At Civic Center Park in Denver shows metal from the World Trade Center. (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the rally At Civic Center Park in Denver shows metal from the World Trade Center. (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the performance by the Beach Boys at the rally At Civic Center Park in Denver. (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the memorial stair climb at Red Rocks (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the rally at Dicks Sporting Goods Park in Commerce City (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the rally at Dicks Sporting Goods Park in Commerce City (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the rally at Dicks Sporting Goods Park in Commerce City (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the memorial stair climb at Red Rocks (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the rally at Dicks Sporting Goods Park in Commerce City (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the rally at Dicks Sporting Goods Park in Commerce City (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the rally in Broomfield (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the rally in Broomfield (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the rally in Broomfield (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the rally in Broomfield (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the rally in Broomfield (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the memorial stair climb at Red Rocks (credit: CBS)

9/11: 10 Years Later In Colorado

Active duty and veteran members of the US Military are greeted by the Cincinnati Reds as they march around the field during pregame activities commemorating the tenth anniversary of the terrorist attacks of September 11, 2001 as the Cincinnati Reds face the Colorado Rockies at Coors Field on Sept. 11, 2011 in Denver. (Photo by Doug Pensinger/Getty Images)

9/11: 10 Years Later In Colorado

An image from the memorial stair climb at Red Rocks (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the memorial stair climb at Red Rocks (credit: CBS)

9/11: 10 Years Later In Colorado

(crAn image from the memorial stair climb at Red Rocks (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the memorial stair climb at Red Rocks (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the memorial stair climb at Red Rocks (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the rally At Civic Center Park in Denver shows metal from the World Trade Center. (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the memorial stair climb at Red Rocks (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the memorial stair climb at Red Rocks (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the memorial stair climb at Red Rocks (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the memorial stair climb at Red Rocks (credit: CBS)

Red Rocks Memorial Stair Climb (12)

An image from the memorial stair climb at Red Rocks (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the memorial stair climb at Red Rocks (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the memorial stair climb at Red Rocks (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the memorial stair climb at Red Rocks (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the memorial stair climb at Red Rocks (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the memorial stair climb at Red Rocks (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the memorial stair climb at Red Rocks (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the rally At Civic Center Park in Denver shows metal from the World Trade Center. (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the memorial stair climb at Red Rocks (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the memorial stair climb at Red Rocks (credit: CBS)

9/11: 10 Years Later In Colorado

An image from the rally at Dicks Sporting Goods Park in Commerce City (credit: CBS)